At home, The Town last week. I saw it in the theaters in September and enjoyed it enough then to buy and watch again, totally worth it.
Went last night to see The Fighter. Thought it was excellent. Probably better than Black Swan (saw that before Christmas).
The acting in both The Fighter and Black Swan was amazing. Natalie Portman and Christian Bale are definitely winning Oscars for their roles, and Melissa Leo, Amy Adams, Mila Kunis were all great too. Even Mark Wahlberg did a good job.
I highly recommend all three movies.